body{
  font-family: sans-serif;
  background: #f2f7fa;
}

.App-logo {
  animation: App-logo-spin infinite 20s linear;
  height: 80px;
}

.App-header {
  background-color: #222;
  height: 150px;
  padding: 20px;
  color: white;
}

.App-intro {
  font-size: large;
}

@keyframes App-logo-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.m-box{
  width: 845px;
  height: 214px;
  background: url('./bg.png') 0 0 no-repeat;
}

hr{
  margin: 5px 0;
  background: #ccc;
  border: 1px solid #ccc;
}
h3{
  margin-top: 10px;
}

input[type=text]{
  position: relative;
  display: inline-block;
  padding: 4px 11px;
  width: 100%;
  height: 32px;
  cursor: text;
  font-size: 12px;
  line-height: 1.5;
  color: #333333;
  background-color: #fff;
  background-image: none;
  border: 1px solid #dddddd;
  border-radius: 2px;
  transition: all .3s;
}
button, input[type=file]{
  display: inline-block;
  margin-bottom: 0;
  font-weight: 500;
  text-align: center;
  touch-action: manipulation;
  cursor: pointer;
  background-image: none;
  border: 1px solid transparent;
  white-space: nowrap;
  line-height: 1;
  padding: 0 15px;
  font-size: 12px;
  border-radius: 2px;
  height: 32px;
  user-select: none;
  transition: all .3s cubic-bezier(.645, .045, .355, 1);
  position: relative;
  color: #333333;
  background-color: #fff;
  border-color: #dddddd;
}

button{
  margin: 5px 5px 10px 0;
}
input[type=file]{
  width: 100%;
  padding: 4px 11px;
  text-indent: -9999px;
}

.mail-sign {
  padding: 15px 20px;
  background-color: #fff;
}

.form-item {
  display: flex;
  align-items: center;
  width: 500px;
  margin-bottom: 20px;
}
.form-item span {
  display: block;
  width: 60px;
}